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CN1403714A - Bleed valve assembly for fluid machinery - Google Patents

Bleed valve assembly for fluid machinery Download PDF

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Publication number
CN1403714A
CN1403714A CN02126553A CN02126553A CN1403714A CN 1403714 A CN1403714 A CN 1403714A CN 02126553 A CN02126553 A CN 02126553A CN 02126553 A CN02126553 A CN 02126553A CN 1403714 A CN1403714 A CN 1403714A
Authority
CN
China
Prior art keywords
valve
slide
discharge
holding space
pressing chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN02126553A
Other languages
Chinese (zh)
Other versions
CN1219980C (en
Inventor
具仁会
张英逸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN1403714A publication Critical patent/CN1403714A/en
Application granted granted Critical
Publication of CN1219980C publication Critical patent/CN1219980C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • F01L3/205—Reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7783—Valve closes in responses to reverse flow

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Details Of Valves (AREA)
  • Check Valves (AREA)
  • Rotary Pumps (AREA)
  • Compressor (AREA)
  • Sliding Valves (AREA)

Abstract

A discharge valve assembly of fluid machinery is provided. The discharge valve assembly of fluid machinery includes a valve housing connected to a discharge side of a compression chamber, forming a valve holding space for holding a valve, forming a discharge hole on one side of the valve holding space, forming a back current hole in the other side of the valve holding space to be separated from the discharge hole, and fixedly installed in a discharge chamber, and a sliding valve positioned between the discharge side of the compression chamber and the discharge hole of the valve housing so as to open and close the discharge hole while sliding according to the pressure of the compression chamber and the pressure of the discharge chamber and inserted into the valve holding space to slide. The sliding valve completely opens the discharge side of the compression chamber and the discharge hole of the valve housing when compressed refrigerant gas is discharged. Accordingly, it is possible to significantly reduce fluid resistance. Because the discharge of the compressed refrigerant gas is restricted while the valve slides, the reaction speed of the valve becomes high. Accordingly, it is possible to effectively prevent the discharge gas from back flowing and to effectively reduce collision noise between the valve and the valve housing.

Description

The bleed valve assembly of fluid machinery
Technical field
The present invention relates to be used for the bleed valve assembly of discharge of the compressed fluid of limit fluid machinery, more specifically, relate to a kind of bleed valve assembly of the fluid machinery that opens and closes with sliding method, this bleed valve assembly is used for reducing the fluid resistance of fluid discharge process and prevents that fluid discharged from refluxing.
Background technique
Usually, fluid machinery with in absorption of fluids to a cylinder body, compressed fluid and by the piston that links to each other with drive motor rotatablely move and compressed fluid is discharged in linear motion.Under nearly all situation, be used for controlling the cylinder body that bleed valve assembly that fluid discharges is included in fluid machinery.
A kind of known bleed valve assembly comprises a leaf valve and a piston valve as shown in Figure 2 as shown in Figure 1.
Leaf valve forms and makes a side of rectangle leaf valve 1 be fixed on cylinder body or the valve plate 2, as free-ended opposite side end face to being formed on the outfall 2a on 2 one side surfaces of cylinder body or valve plate, thereby the drainage of control compressed fluid.
Leaf valve 1 is fixed and be attached to the retainer that is used to limit the motion of leaf valve 1.
As shown in Figure 2, piston valve forms and makes outfall 5a be formed on the side surface of cylinder body or valve plate 5.Have predetermined weight piston valve 4 be arranged on outfall 5a top.
Valve chest 6 side within it has than bigger slightly the inner circumference of the excircle of piston valve 4 to hold piston valve 4, and comprising a return port 6b who is formed on valve chest one side, valve chest 6 is fixedly joined on the side surface of cylinder body or valve plate 5 by the preset device such as bolt.
But leaf valve 1 has such shortcoming, because leaf valve cuts out outfall 2a, the loss that the fluid resistance of discharging when fluid causes makes when pressure ratio increases that leaf valve 1 opens and closes and will produce the valve noise.
And, in piston valve 4,, quite big at the process medium fluid resistance of discharging compressed fluid owing to compressed fluid must be discharged from when the piston valve 4 that moves up heavy.Particularly, in the high pressure ratio running, when piston valve 4 can not prevent the backflow of compressed fluid smoothly, will produce loss owing to reflux.And, in the misoperation process, can produce the valve noise when in piston valve 4 is being fixed to valve chest 6 on cylinder body or the valve plate 5, moving up and down.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of bleed valve assembly of fluid machinery, it can reduce fluid resistance, reduce noise and prevent fluid reflux effectively in the process of discharging compression refrigeration gas.
In order to realize these or other advantage according to the object of the invention, as embodying here with broadly described, a kind of bleed valve assembly of fluid machinery is provided, comprise: be connected to the valve chest that pressing chamber is drained side and is formed with the valve holding space that is used to hold a valve, described valve chest is formed with drain boles in a side of valve holding space, opposite side at the valve holding space that separates with drain boles is formed with return port, and described valve chest is fixedly mounted in the excretion device; And be arranged between the drain boles of the drainage side of pressing chamber and valve chest, sliding with the pressure according to the pressure of pressing chamber and excretion device opens and closes the slide-valve of drain boles, described slide-valve is inserted in the valve holding space so that slip.
By the detailed description below in conjunction with accompanying drawing, above and other objects of the present invention, feature, aspect and advantage will become more apparent.
Description of drawings
The accompanying drawing that helps further to understand the present invention and constitute the application's part has shown embodiments of the invention, and is used for explaining principle of the present invention with specification.In the accompanying drawing:
Fig. 1 is a vertical sectional view, has schematically shown an example of the bleed valve assembly of existing fluid machinery;
Fig. 2 is a vertical sectional view, has schematically shown another example of the bleed valve assembly of existing fluid machinery;
Fig. 3 is an exploded perspective view, has shown the bleed valve assembly according to the fluid machinery of taking apart of the present invention;
Fig. 4 is a vertical sectional view, has shown the operation according to the bleed valve assembly of fluid machinery of the present invention; And
Fig. 5 is a vertical sectional view, has shown the operation according to the bleed valve assembly of fluid machinery of the present invention.
Embodiment
Below with reference to the bleed valve assembly of embodiment's detailed description shown in the accompanying drawing according to fluid machinery of the present invention.
Fig. 3 is an exploded perspective view, has shown the bleed valve assembly according to the fluid machinery of taking apart of the present invention.Figure 4 and 5 are vertical sectional view, have shown the operation according to the bleed valve assembly of fluid machinery of the present invention.
Shown in Fig. 3 to 5, comprise according to the bleed valve assembly of fluid machinery of the present invention and to be fixedly mounted in cylinder body front end or valve plate 1 front end with the valve chest 10 of the outfall 1a that is connected to pressing chamber C be arranged on the slide-valve 20 of valve chest 10 inboards, when slide-valve 20 slided owing to the pressure reduction between the pressure P c of the pressure P d of excretion device D and pressing chamber C, slide-valve 20 opened and closed outfall 1a.
From plan view, valve chest 10 has The cross section of shape to be comprising a valve holding space 11, the valve holding space with surface that cylinder body or valve plate 1 contact on be connected to outfall 1a.Drain boles 12 that is connected with valve holding space 11 and return port 13 are formed on the upper surface of valve chest 10 with being spaced from each other.
Drain boles 12 and return port 13 preferably are spaced from each other intended distance ground and form, make drain boles 12 or return port 13 in the range of movement of slide-valve 20 with slide-valve 20 crossovers.
Consider the fluid resistance in discharging the pressurized gas process, drain boles 12 is arranged on the same vertical line with the outfall 1a of cylinder body or valve plate 1, and preferably forms the diameter greater than outfall 1a.
Return port 13 comprises breakthrough part 13a and the groove 13b that connects valve holding space 11, and groove 13b is by forming so that be connected with breakthrough part 13a on the side surface that is formed in valve holding space 11.
Breakthrough part 13a is in the face of the plane of slide-valve 12.Groove 13b is formed on the surface of valve chest 10 so that in the face of a surface of slide-valve 20.
Groove 13b can be formed on the surface of slide-valve 20 so that be included in the above-mentioned return port 13.
From plan view, slide-valve 20 has The cross section of shape makes the drain passage groove 21 that always is connected with the outfall 1a of cylinder body or valve plate 1 be included on the surface that contacts with cylinder body or valve plate 1 with auxiliary drain passage groove 21a.
Drain passage groove 21 and auxiliary drain passage groove 21a form straight line, diagonal or curve, so that the opposite side from the bottom centre of slide-valve 20 towards the return port 13 of valve chest 10.
A buffer unit (not shown) can be loaded on valve chest 10 or the slide-valve 20, perhaps be loaded on two side surfaces, to prevent on two side surfaces of the valve holding space 11 of valve chest 10 and the collision noise on the front and rear surfaces of the slide-valve 20 corresponding with two side surfaces of the valve holding space 11 of valve chest 10, that is the collision noise on the contact surface between valve chest 10 and the slide-valve 20.
Operation and effect according to the bleed valve assembly of fluid machinery of the present invention below will be described.
As shown in Figure 4, as the pressure P c of the pressing chamber C pressure P d greater than excretion device D, the pressurized gas that the outfall 1a by pressing chamber C drains is directed into the rear end of slide-valve along the drain passage groove 21 of slide-valve 20.When the pressurized gas that is directed into slide-valve 20 rear ends increased, slide-valve 20 power of being ostracised promoted with respect to the side surface of valve holding space 11.When slide-valve was pulled to the opposite side of valve holding space 11 of valve chest 10, drain boles 12 was opened.Therefore, the pressurized gas of draining from pressing chamber C successfully is discharged to excretion device D.
As shown in Figure 5, when because thereby compressor stops or excessive vacuum or excess compression ground when being driven the pressure P c that causes pressing chamber C less than the pressure P d of excretion device D, be discharged among the breakthrough part 13a and groove 13b of some compression refrigeration gases inflow return ports 13 of excretion device D.Compression refrigeration gas promotes slide-valve 20 by repulsive force.Because the pressure P c of pressing chamber C is less than the pressure P d of excretion device D, slide-valve 20 is pushed rearward.Therefore, slide-valve 20 has interdicted the outfall 1a of drain boles 12, return port 13 and pressing chamber C, thereby prevents that the pressurized gas of discharging is back to pressing chamber C.
Slide-valve has limited the discharge of pressurized gas, can slide in the valve holding space of valve chest according to the pressure reduction between pressing chamber pressure and the excretion device pressure simultaneously.Because the outfall of pressing chamber and the drain boles of valve chest are arranged on the same vertical axis, fluid resistance is significantly reduced.Therefore, can improve the performance of compressor.
And, because the reaction velocity of slide-valve is very fast, can prevent to discharge gas backstreaming effectively.And, when opening and closing, slide-valve carries out sliding movement.Discharge gas and pressurized gas and carry out pooling feature in the front and back side.On two surfaces, also increased buffer unit.Therefore, can reduce the collision noise of slide-valve effectively.
Bleed valve assembly according to fluid machinery of the present invention comprises valve chest with valve holding space and the slide-valve that can slide and discharge with limit compression gas in the valve holding space.Therefore, when the cooling gas of compression was discharged, slide-valve can be opened the outfall of pressing chamber and the drain boles of valve chest fully.Thereby, can reduce fluid resistance significantly.
And, having limited the discharge of pressurized gas when sliding owing to slide-valve, the reaction velocity of slide-valve accelerates.Therefore, can prevent to discharge gas backstreaming effectively and can reduce collision noise between slide-valve and the valve chest effectively.

Claims (4)

1. the bleed valve assembly of a fluid machinery, the valve that has pressing chamber, excretion device and be used to open and close pressing chamber and excretion device, described bleed valve assembly comprises:
Be connected to the valve chest that pressing chamber is drained side and is formed with the valve holding space that is used to hold valve, described valve chest is formed with drain boles in a side of valve holding space, opposite side at the valve holding space that separates with drain boles is formed with return port, and described valve chest is fixedly mounted in the excretion device; And
Be arranged between the drain boles of the drainage side of pressing chamber and valve chest, sliding with the pressure according to the pressure of pressing chamber and excretion device opens and closes the slide-valve of drain boles, described slide-valve is inserted in the valve holding space so that slip.
2. bleed valve assembly as claimed in claim 1 is characterized in that, the return port of valve chest comprises:
Connecting ground forms so that the breakthrough part on the plane of corresponding slide-valve; And
Groove, described groove are formed on the surface of valve chest and valve holding space contact so that be connected with breakthrough part, thereby corresponding to a surface of slide-valve.
3. bleed valve assembly as claimed in claim 1, it is characterized in that, slide-valve comprises being positioned to be drained on the surface of side contacts with pressing chamber and always drains drain passage groove and the auxiliary drain passage groove that side is connected with pressing chamber, opens direction thereby make from the fluid of pressing chamber discharge the slide-valve body to be shifted to.
4. bleed valve assembly as claimed in claim 1, it is characterized in that the buffer unit that is used to reduce collision noise is loaded on the surface with the valve chest of valve holding space contact or is installing and the surface of separating with the surperficial corresponding slide-valve of valve chest.
CNB021265534A 2001-08-31 2002-07-23 Bleed valve assembly for fluid machinery Expired - Fee Related CN1219980C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR534292001 2001-08-31
KR10-2001-0053429A KR100417426B1 (en) 2001-08-31 2001-08-31 Discharge valve assembly for compressor

Publications (2)

Publication Number Publication Date
CN1403714A true CN1403714A (en) 2003-03-19
CN1219980C CN1219980C (en) 2005-09-21

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CNB021265534A Expired - Fee Related CN1219980C (en) 2001-08-31 2002-07-23 Bleed valve assembly for fluid machinery

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US (1) US6748971B2 (en)
JP (1) JP3605094B2 (en)
KR (1) KR100417426B1 (en)
CN (1) CN1219980C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115479014A (en) * 2021-06-14 2022-12-16 丹佛斯商用压缩机公司 Discharge valve device for refrigerant compressor

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* Cited by examiner, † Cited by third party
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KR100692596B1 (en) 2004-05-06 2007-03-13 삼성전자주식회사 Digital broadcasting transmission and reception system with improved reception performance and signal processing method thereof
RU169643U1 (en) * 2016-05-17 2017-03-28 Публичное акционерное общество "Татнефть" им. В.Д. Шашина Gate valve
EP3534047B1 (en) * 2017-05-31 2023-07-05 Murata Manufacturing Co., Ltd. Valve and fluid control device
WO2019186800A1 (en) * 2018-03-28 2019-10-03 三菱電機株式会社 Hermetic compressor and refrigeration cycle device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115479014A (en) * 2021-06-14 2022-12-16 丹佛斯商用压缩机公司 Discharge valve device for refrigerant compressor

Also Published As

Publication number Publication date
JP2003106468A (en) 2003-04-09
CN1219980C (en) 2005-09-21
JP3605094B2 (en) 2004-12-22
US20030070712A1 (en) 2003-04-17
US6748971B2 (en) 2004-06-15
KR20030018848A (en) 2003-03-06
KR100417426B1 (en) 2004-02-05

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